The married couple - who relocated to California in 2020 - confirmed last week they will not return as working members of the British Royal Family, with their roles now needing to be filled.

A source told the Daily Mirror newspaper: "When the writing was on the wall and it was clear the Duke and Duchess had no intention of coming back into the fold and being part of the team, the Queen made her mind up long ago over her preferred candidates for the roles they vacated."